diff --git a/README.md b/README.md
index 76497df..eb984ca 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Command line client and utilities for AutoC4.
 $ c4ctrl.py -h
 ```
 
-## kitchentext.py
+## kitchentext
 Kitchenlight utility script.
 
 ```
@@ -24,11 +24,22 @@ Depends on *c4ctrl[.py]*. Install by putting *c4ctrl.vim* into your
 
 ### Usage
 ```
-:C4ctrl get                   -- Read current state into buffer.
-:C4ctrl open $name            -- Open local preset $name.
-:C4ctrl set [w|p|f] [-magic]  -- Apply current buffer as preset to room
-                                 [w]ohnzimmer, [p]lenarsaal or [f]nordcenter.
-                                 Default is all rooms.
-:C4ctrl text                  -- Put line under cursor on the Kitchenlight.
-:C4ctrl write $name           -- Save current buffer as preset $name.
+:C4ctrl get                    -- Read current state into buffer.
+:C4ctrl open $name             -- Open local preset $name.
+:C4ctrl set [w|p|f] [-magic]   -- Apply current buffer or range/selection as
+                                  preset to room [w]ohnzimmer, [p]lenarsaal or
+                                  [f]nordcenter. Default is all rooms.
+:C4ctrl kitchentext [register] -- Display text in register, selected text or
+                                  text in range on the Kitchenlight.
+:C4ctrl write $name            -- Save current buffer as preset $name.
 ```
+
+## _c4ctrl
+
+Completion script for zsh.
+
+### Installation
+
+Put *_c4ctrl* somewhere into *$fpath* (or alter *$fpath* in your *.zshrc*).
+See also: http://zsh.sourceforge.net/Doc/Release/Completion-System.html#Completion-Directories
+